package com.dpj.n4.deadlock.v1;


import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;

public class TestDeadLock {
    public static void main(String[] args) {
        Chopstick c1=new Chopstick("1");
        Chopstick c2=new Chopstick("2");
        Chopstick c3=new Chopstick("3");
        Chopstick c4=new Chopstick("4");
        Chopstick c5=new Chopstick("5");
        new Philosopher("苏格拉底",c1,c2).start();
        new Philosopher("帕拉图",c2,c3).start();
        new Philosopher("亚里士多德",c3,c4).start();
        new Philosopher("赫拉克利特",c4,c5).start();
        new Philosopher("阿基米德",c1,c5).start();
    }

}
@Slf4j(topic = "c.Philosopher")
class Philosopher extends Thread{
    Chopstick left;
    Chopstick right;
    public Philosopher(String name,Chopstick left,Chopstick right){
        super(name);
        this.left=left;
        this.right=right;
    }

    @SneakyThrows
    @Override
    public void run() {
        while (true){
            synchronized (left){
                synchronized (right){
                    eat();
                }
            }
        }
    }

    private void eat() throws InterruptedException {
        log.debug("eating");
        Thread.sleep(500);
    }
}

class Chopstick{
    String name;

    public Chopstick(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Chopstick{" +
                "name='" + name + '\'' +
                '}';
    }
}
